Bad Memory, or something else?

So my PC locked up the other day, shut down abnormally, when I tried to restart it got a ntldr is missing message. Wasn't sure what it was, couldn't find the ntldr on my other PC to attempt to repair after looking online.

Said screw it, I'll just reformat and see if that does anything. Try the recovery disks. Gets to 95% and can not copy any of the windows\i386 files.

Thanks for the reply, I got it running now, opened the case, saw the the Promise Technology TX2300 and said wth, lets give it a shot. Thankfully I was just missing it's drivers, PC is running, memory is fine, but have two more gb on the way that I ordered when I wasn't sure if what I had was good. Guess I'll have to live with 4GB /sigh lol.